Rollerblade Hydrogen Pro 90mm XX-Firm Inline Skate Wheels 8-Pack item_17573 The Triple Track technology on

The Triple Track technology on this ball comes in the form of lines on the ball that provide improved putting accuracy by offering improved alignment

Grip Size: 4 1/2

Model Number: MPF

There is an EVA sockliner that provides excellent rebound and cushioning and you will get a whole new level of stability with the Trusstic System technology

Rollerblade Hydrogen Pro 90mm XX-Firm Inline Skate Wheels 8-Pack item_17573 The Triple Track technology onGet consistent performance with the Rollerblade Hydrogen Pro Inline Skate Wheels. These wheels provide skaters with consistent, top end performance and gives skates the extra speed needed for all athletic competitions. They are built with MTech technology that is comprised of two layers of urethane that provides the ultimate footprint for grip, rebound, roll and wear. Sold as 8 Pack Premium Dual Formula Urethane Soft Resilient Inner PU Band Durable PU